VOL.VI, BOTANY U S, GEO&RAPHICAL SURYEYS WEST OF 100""MERIDIAN. ' plate XXVII.W.H. Seaman, Del.Fitfs L3 T-RISETUM Y^OLFII. Figs. 4-6 TRISETUM ALPESTRE, Hgs. 7-9 VILFA MINIMA